SoMultiPassFramebufferSampler.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef SO_MULTI_PASS_FRAMEBUFFER_SAMPLER_H
#define SO_MULTI_PASS_FRAMEBUFFER_SAMPLER_H
 
 
 
#include "SoShaderSystem.h"
#include "Inventor/nodes/SoFramebufferSampler2D.h"
#include <Inventor/fields/SoSFUInt32.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/SbLinear.h>
 
class SoGLFramebufferObject;
class SoGLTexture;
 
class INVENTOR_SHADER_API SoMultiPassFramebufferSampler : public SoFramebufferSampler2D
{
   typedef SoFramebufferSampler2D inherited;
 
   SO_NODE_HEADER(SoMultiPassFramebufferSampler);
 
   public:
 
      SoSFUInt32     numPasses;
 
      SoSFFloat      epsilon;
 
      SoSFFloat      value;
 
      SoSFUInt32     id;
 
      SoSFBool       initSamplerCopy;
 
      SoMultiPassFramebufferSampler();
 
   SoINTERNAL public:
 
      static void    initClass();
 
      unsigned int   curPass() {
         return _curPass;
      }
 
   SoEXTENDER public:
 
      SoGLTexture *getCopyColorBuffer() const {
         return _copyColorBuffer;
      }
 
   protected:
 
      unsigned int _curPass;
      SbVec2s      _prevSize;
      uint32_t     _prevFormat;
 
      ~SoMultiPassFramebufferSampler() override;
 
      void applyRenderAction(SoState *) override;
 
   private:
 
      SoGLFramebufferObject   *_copyFramebufferObject;
      SoGLTexture               *_copyColorBuffer;
};
 
#endif  // _SO_MULTIPASS_FRAMEBUFFER_SAMPLER_